Modding FAQ. All Information about modifying Mk7's.

[Tk_mkv1]

It is NOT an easy job but no, generally there is no fabrication to install an LSD in these 02M/02Q transmissions but it should be done by a professional. This is coming from a guy that DIY's everything.

My understanding is that the VW VAQ diff is a mechanical diff that is controlled by the ECU. This means that the diff is able to have variable degrees of locking where as a sole mechanical unit has a fixed degree at which is will lock. This means that you get the benefits of a LSD while having basically none of the negatives which are comfort related like steering response and steering precision complaints. I'm not the biggest differential guy so maybe some tech guru can shed more light, but that is what I've gathered from it.



No I didn't forget it. I didn't include it because I hate the DSG and believe everyone should drive a manual.



Joking (Well, Kind of haha). I just don't have any first hand experience with DSG tunes so I didn't put anything in about them. I'll write-up a section one of these days when I feel like helping out you lazy automatic drivers hehehe

I like manual too, I came from a manual GTI, but DC traffic just kills the fun, especially when you press the clutch 200 times each mile.

 

[Stage2Sasquatch]

I like manual too, I came from a manual GTI, but DC traffic just kills the fun, especially when you press the clutch 200 times each mile.

Just think of it as free leg day Nah I gotcha, we used to visit our relatives in Hagerstown and we would go down to DC all the time. I'll update it with some info when I get the chance.

 

[RjRacing]

Great job!

Add this to drivetrain specs if you want...



MK7 GTI 6sp Manual MQB
1st 3.76
2nd 2.08
3rd 1.46
4th 1.08
5th 1.09
6th 0.91
Final I (1-4) 3.24
Final II (5/6/R) 3.44

MK7 GTI DSG DQ250 MQB
1st 2.92
2nd 1.79
3rd 1.14
4th 0.77
5th 0.80
6th 0.64
Final I (1-4) 4.77
Final II (5/6/R) 3.44

MK7 Golf R DSG DQ250 MQB
1st 2.92
2nd 1.83
3rd 1.31
4th 0.97
5th 1.04
6th 0.81
Final I (1-4) 4.77
Final II (5/6/R) 3.44

The combined gears and final drive ratios on GTI transmissions…
Trans_type 1st 2nd 3rd 4th 5th 6th
6MT 12.18 6.74 4.73 3.50 2.86 2.38
DSG 13.93 8.54 5.44 3.72 2.75 2.20

Speeds @6500 RPM (in MPH)
Trans_type 1st 2nd 3rd 4th 5th 6th
6MT 39 70 99 134 165 197
DSG 34 55 86 126 171 213

 

[Brainclaw]

Thank you! Yeah, no way in hell i would try it myself. NOW the question is to find someone qualified when the time comes >.<

Another question for ya. I am getting a Southbend Stage 3 Daily and i was just curious if you happen to know which bolts/how many flex/stretch bolts that need to be replaced during the install? Id like the process to be a 1 and done.

Thank you!

 

[davo441]

Nice lots of questions just answered


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[dwvw]

Might want to edit it a bit. APR does not have program switching for the MK7 yet. Eurodyne you don't exchange credits for various tunes, 8 credits gets you all available ECU tunes for your platform.
Other than that looks great.

 

[Stage2Sasquatch]

Might want to edit it a bit. APR does not have program switching for the MK7 yet. Eurodyne you don't exchange credits for various tunes, 8 credits gets you all available ECU tunes for your platform.
Other than that looks great.

Hahaha Yeah I'll fix that in a second. That's why I put "V1.0 11/23/15 (Original Version with lots of errors)" The reason I was able to do it so fast is that I pulled most of the basic information and definition from my sticky on the MKV forums. I'll get things sorted.

 

[Babyface1249]

Great thread, very helpful info, and accurate too! I would add that for anyone who cares about having an LSD, the $1,500 performance package is the most cost-effective way. Considering you also get a hp bump and Golf R brakes, it was a no brainer to me since I definitely wanted an LSD.

 

[Helltime]

Nice write up! If I may make a suggestion (slight one) under tires I believe the continental DW falls under the Ultra-high performance summer tire category with the Hankook ventus V12s and PSS tires. I had the hankook V12s on my 135i, PSS on my mk4 GTI and Continental DW on my G8 GT (all tires/cars I owned at the same time) and the DW I would place right in there with the V12s and PSS. Better wet traction that the V12s and just as much dry traction with slightly less driver feedback.

 

[Stage2Sasquatch]

Great thread, very helpful info, and accurate too! I would add that for anyone who cares about having an LSD, the $1,500 performance package is the most cost-effective way. Considering you also get a hp bump and Golf R brakes, it was a no brainer to me since I definitely wanted an LSD.

This thread is more of mods only but yeah I'll try to put that in. Honestly the PP is an AMAZING bang for buck when you think of all the things it comes with.

Nice write up! If I may make a suggestion (slight one) under tires I believe the continental DW falls under the Ultra-high performance summer tire category with the Hankook ventus V12s and PSS tires. I had the hankook V12s on my 135i, PSS on my mk4 GTI and Continental DW on my G8 GT (all tires/cars I owned at the same time) and the DW I would place right in there with the V12s and PSS. Better wet traction that the V12s and just as much dry traction with slightly less driver feedback.

DWS are different from the DW. DWS are the All-season tires, DW's are the summers. I'll add those in though because I've heard good things.

 

[Helltime]

This thread is more of mods only but yeah I'll try to put that in. Honestly the PP is an AMAZING bang for buck when you think of all the things it comes with.



DWS are different from the DW. DWS are the All-season tires, DW's are the summers. I'll add those in though because I've heard good things.

Thats what I am saying. I have the DW (not the DWS) and they are in the same category as the ventus V12s and PSS

Edit: I think I get what you are saying now. you probably thought I was saying the DWS is in the wrong category?

 

[Stage2Sasquatch]

Thats what I am saying. I have the DW (not the DWS) and they are in the same category as the ventus V12s and PSS

Edit: I think I get what you are saying now. you probably thought I was saying the DWS is in the wrong category?

That's right. Not all the mods and tires are in the write-up. If I named everything then it would be 5 pages longer haha. I'll add Extreme-conti DW's to the guide because I've heard great things.

 

[John@Unitronic]

Thanks for compiling this information for others.

-Unitronic: Unitronic is a large tuning company specializing in the VAG platform. (https://www.unitronic-chipped.com/ecu-tuning/Volkswagen-GTI-20L-TSI-EA888-2015-2015-stage1) They offer staged tunes for our cars ranging from just a reflash to big turbo tunes. Tunes are done through the OBDII port, but you can also purchase UniConnect which allows on the go program switching at your convenience.

• Stage 1: Modifications necessary: none. A tune for a bone stock car that removes the rev limiter and increases boost and modifies timing.
• Stage 1+: Modifications necessary: none. A tune for a bone stock car that removes the rev limiter and increases boost and modifies timing. Same tune but for 93 Octane.
• Stage 2: Modifications necessary: 2.75-3.0 inch downpipe and intake. A tune for a car with just an exhaust; Note: only downpipe and intake is required.
• Stage 2+: Modifications necessary: 2.75-3.0 inch downpipe, intake, and IS38 Turbocharger from Golf R.

UniConnect is NOT compatible with the SIMOS 18 ECU platform found in the MK7 GTI's. However, UniConnect+ is. Sorry for pointing out the small correction, but just would like to avoid any potential confusion for others reading.

 

[Stage2Sasquatch]

UniConnect is NOT compatible with the SIMOS 18 ECU platform found in the MK7 GTI's. However, UniConnect+ is. Sorry for pointing out the small correction, but just would like to avoid any potential confusion for others reading.

Fixed, jesus fuck this is becoming a full-time job fixing all my mistakes lol

 

[codespyder]

Great write-up. It's a great refresher for those of us who have done our research. Wish I had seen this before!

One thing, the link to the CTS downpipe is not for the current Mk7 GTI. This is the link I think you're referring to: http://www.ctsturbo.com/cart/products/CTS_Turbo_MK7_GTI_Golf_Downpipe-4711-0.html